How does a live network upgrade from ArubaOS 8.1.0.2 to 8.1.0.3 look like for a network of two controllers in a cluster and 4 APs? Check out this video to see how to kick it off and how first all APs and clients are moved to one controller, the other controller is upgraded, then APs are upgraded and connect to the upgraded controller and finally, the original controller is upgraded. All without a service interruption of the clients.
Live upgrade leverages the ArubaOS 8.x clustering technology.

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